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|Gray's||subject #242 1110|
|Section of the human esophagus. Moderately magnified. The section is transverse and from near the middle of the gullet.|
a. Fibrous covering.
b. Divided fibers of longitudinal muscular coat.
c. Transverse muscular fibers.
d. Submucous or areolar layer.
e. Muscularis mucosae.
f. Mucous membrane, with vessels and part of a lymphoid nodule.
g. Stratified epithelial lining.
h. Mucous gland.
i. Gland duct.
m’. Striated muscular fibers cut across.
The mucous membranes (or mucosae; singular: mucosa) are linings of mostly endodermal origin, covered in epithelium, and are involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organs. It is at several places continuous with skin: at the nostrils, the lips, the ears, the genital area, and the anus. The sticky, thick fluid secreted by the mucous membranes and gland is termed mucus. The term mucous membrane refers to where they are found in the body and not every mucous membrane secretes mucus.
Body cavities featuring mucous membrane include most of the respiratory system. The glans penis (head of the penis) and glans clitoris and the inside of the prepuce (foreskin) and clitoral hood are mucous membranes, not skin.
==Effects of stress on mucosa]]
Components[edit | edit source]
Types of mucosa (incomplete)[edit | edit source]
- Buccal mucosa
- Gastric mucosa
- Intestinal mucosa
- Olfactory mucosa
- Oral mucosa
- bronchial mucosa
- Endometrium is the mucosa of the uterus
Additional images[edit | edit source]
See also[edit | edit source]
[edit | edit source]
- "Mammal, whole system (LM, Low)"
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